CN210656594U - Biological treatment device for percolate - Google Patents
Biological treatment device for percolate Download PDFInfo
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- CN210656594U CN210656594U CN201921493549.3U CN201921493549U CN210656594U CN 210656594 U CN210656594 U CN 210656594U CN 201921493549 U CN201921493549 U CN 201921493549U CN 210656594 U CN210656594 U CN 210656594U
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 230000003647 oxidation Effects 0.000 claims abstract description 35
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910001868 water Inorganic materials 0.000 claims abstract description 33
- 239000000945 filler Substances 0.000 claims abstract description 29
- 239000010802 sludge Substances 0.000 claims abstract description 29
- 238000004062 sedimentation Methods 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 22
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 17
- 241000894006 Bacteria Species 0.000 claims abstract description 16
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 7
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 7
- 241001330002 Bambuseae Species 0.000 claims abstract description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 7
- 239000011425 bamboo Substances 0.000 claims abstract description 7
- 239000003610 charcoal Substances 0.000 claims abstract description 7
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 57
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 238000012856 packing Methods 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 238000011081 inoculation Methods 0.000 claims description 2
- 239000000149 chemical water pollutant Substances 0.000 abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052799 carbon Inorganic materials 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 21
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 17
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 14
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- 239000012071 phase Substances 0.000 description 7
- 238000002156 mixing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 229920005830 Polyurethane Foam Polymers 0.000 description 4
- 239000010791 domestic waste Substances 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 239000011496 polyurethane foam Substances 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 238000007790 scraping Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 241001453382 Nitrosomonadales Species 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 description 2
- 239000004137 magnesium phosphate Substances 0.000 description 2
- 229960002261 magnesium phosphate Drugs 0.000 description 2
- 229910000157 magnesium phosphate Inorganic materials 0.000 description 2
- 235000010994 magnesium phosphates Nutrition 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910017958 MgNH Inorganic materials 0.000 description 1
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000003181 biological factor Substances 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
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Abstract
The application relates to a leachate biochemical treatment device in the technical field of garbage treatment, which comprises a landfill leachate inlet pipe, an adjusting tank, an anaerobic ammonia oxidation reactor, an inclined pipe sedimentation tank, a liquid outlet pipe and a water outlet pipe, wherein the landfill leachate inlet pipe is communicated with the adjusting tank; the anaerobic ammonia oxidation reactor is internally provided with a sludge bed reaction area and a filler area, anaerobic ammonia oxidation bacteria are inoculated in the sludge bed reaction area, and the filler area is sequentially provided with bamboo charcoal, biochemical filler and non-woven fabric from top to bottom. The utility model discloses denitrogenation need not to add the carbon source alone, and the high area of denitrogenation efficiency is little for the biochemical treatment cost reduces greatly.
Description
Technical Field
The utility model relates to a refuse treatment technical field, concretely relates to filtration liquid biochemical treatment device.
Background
The landfill leachate is associated secondary pollutants of a landfill site and mainly comes from rainfall and internal water of the garbage. The properties of the percolate can be influenced by a plurality of physical factors, chemical factors, biological factors and the like in the flowing process of the liquid, such as: the influence of the property of the garbage component, the structure of the landfill, the landfill method, the age of the landfill, rainfall and rainwater runoff, the landfill time, the landfill mode and the surface condition of the landfill; the properties of the percolate vary within a relatively large range. The landfill leachate has complex components, high pollutant concentration, large chromaticity and strong toxicity, contains a large amount of organic pollutants and various heavy metal pollutants, and is high-concentration organic wastewater with complex components. If the landfill leachate is improperly treated, the quality of surface water is affected, the safety of underground water is also endangered, and if the landfill leachate is directly discharged into the environment without being treated, serious environmental pollution is caused.
In China, the development of sanitary landfill of garbage is late, and various levels of governments in the middle and later stages of the eighties of the twentieth century begin to plan and build relatively standard garbage landfill sites. Therefore, the construction of the percolate treatment plant is started late. In the period, the landfill leachate treatment process is designed and built by referring to the conventional urban sewage treatment process; the particularity of the leachate is not considered enough, the change characteristic of the leachate is not considered, and only a certain effect is achieved at the initial stage of landfill, but along with the prolonging of the landfill time, the concentration of the landfill leachate is higher and higher, the components are more and more complex, the biodegradability of the leachate is poor, and the treatment effect is obviously poor. The key point of leachate treatment is COD and ammonia nitrogen, especially ammonia nitrogen treatment, the ammonia nitrogen concentration in the leachate increases with the increase of the landfill life, can reach about 3000mg/l, and when the ammonia nitrogen concentration is too high, the activity of microorganisms can be influenced, and the biological treatment effect is reduced. The "standard for controlling pollution of landfill of domestic waste" (GB16889-2008) requires "2011 7, 1 and so on, all existing landfill sites should treat leachate of domestic waste by themselves and implement the limit of water pollution emission concentration specified in table 2". Wherein the total nitrogen is 40mg/L, and the ammonia nitrogen is 25 mg/L. Therefore, the denitrification treatment of the leachate is imperative and has practical guiding significance.
The existing denitrification treatment comprises the following steps: 1. a stripping method: the stripping method is characterized in that ammonia nitrogen in leachate is stripped by utilizing a certain concentration difference between the actual concentration and the equilibrium concentration of ammonia nitrogen in a system under an alkaline environment condition in an additional aeration or stripping tower mode, so that the ammonia nitrogen in water continuously deviates to a gas phase, and the aim of transferring nitrogen from a liquid phase to the gas phase is fulfilled; however, the pH value required for stripping is alkaline, so that alkaline substances are required to be added to adjust the reaction environment, which results in higher operation cost. 2. Adsorption: the adsorption denitrification utilizes the large specific surface area of the adsorbent to adsorb nitrogen products in a water sample. A technical method for separating nitrogen from waste water by processes of adhesion adsorption, ion exchange or surface precipitation. The adsorption denitrification treatment method is simple and easy to implement, the adsorbent can be regenerated, but the regeneration liquid needs to be subjected to denitrification treatment again, and the operation cost is increased. 3. Magnesium phosphate reaming MAP precipitation method: the MAP precipitation method mainly aims at removing high-concentration ammonia nitrogen in wastewater due to NH4 +N does not generally precipitate with anions, while some of its double salts are insoluble in water, such as magnesium phosphate, zinc phosphate, etc. Thus, magnesium and phosphate are added to the leachate to make NH4 +To form MgNH which is a sparingly soluble salt4P04∙6H2And 0, performing gravity settling to achieve the aim of removing ammonia nitrogen, wherein sodium hydroxide is required to be added to regulate the pH value in the reaction, and the reaction is large in dosage and relatively expensive in price.
The air pollution is caused by the air stripping method, the problem of membrane regeneration by the adsorption method is difficult to solve, the cost of the precipitation method is high, so that the microorganisms have the advantages of rapid growth, good removal effect, high efficiency, low cost, simple post treatment and the like by removing ammonia nitrogen, the method is mainly based on nitrification-denitrification, wherein the nitrification-denitrification is mainly based on denitrification, nitrification and a series of reactions under the action of various microorganisms to finally generate carbon dioxide, nitrogen and water, which is the characteristic of removing ammonia nitrogen by the biological method, the nitrification reaction is characterized in that the ammonia nitrogen in the wastewater is oxidized into nitrate or nitrite by the action of aerobic nitrifying bacteria under the aerobic condition, the residual nitrite and nitrate are reduced into nitrogen by the denitrifying bacteria in the absence of oxygen, but the denitrification process needs an organic substrate (carbon source), the cost of basic facilities is high, in addition, acid is produced in the nitration process, and extra alkali is needed to be added for neutralization, so that secondary pollution and extra cost are caused.
Therefore, there is a need in the art to provide a novel biochemical treatment apparatus which does not require the addition of a carbon source, is easy to operate, and requires less capital cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a filtration liquid biochemical treatment device to it is big to solve prior art's area that relies on the biological treatment device denitrogenation of nitrifying-denitrification and brings, needs the problem of extra additional carbon source of adding.
The utility model provides a domestic waste filtration liquid biochemical treatment device, including landfill leachate feed liquor pipe, equalizing basin, anaerobic ammonium oxidation reactor, pipe chute sedimentation tank, drain pipe and outlet pipe, landfill leachate feed liquor pipe and equalizing basin intercommunication, the export of equalizing basin is equipped with the regulating pump, the regulating pump passes through the regulating pipe and communicates with anaerobic ammonium oxidation reactor, anaerobic ammonium oxidation reactor is located the top of swash plate sedimentation tank and is linked together through drain pipe and pipe chute sedimentation tank; be equipped with sludge blanket reaction zone and filler district in the anaerobic ammonia oxidation reactor, the inoculation has anaerobic ammonia oxidation bacteria in the sludge blanket reaction zone, the filler district is from last to being equipped with bamboo charcoal, biochemical filler and non-woven fabrics down in proper order, the pipe chute sedimentation tank includes conical barrel, conical barrel is from last to being stirring district, pipe chute district and mud fill down in proper order, be equipped with the stirring subassembly in the stirring district, the pipe chute is intraductal to be equipped with from the middle part to the pipe wall below slope's pipe chute filler, the inclination of pipe chute filler is 45 ~ 60, the bottom of mud fill is provided with the mud pipe, the upside in pipe chute district is equipped with the overflow weir, the overflow weir is linked together with the outlet pipe.
The working principle is as follows: the utility model discloses a domestic waste filtration liquid biochemical treatment device at first puts garbage filtration liquid into the equalizing basin earlierThe anaerobic ammonia oxidation reactor is mainly divided into two layers, namely a sludge bed reaction zone and a filler zone, liquid enters the sludge bed reaction zone to react with anaerobic ammonia oxidizing bacteria in sludge, and the anaerobic ammonia oxidizing bacteria react with NO under anaerobic conditions2 —As electron acceptor, NH4 +Direct oxidation to nitrogen (N)2) The denitrification process is realized, in addition, when liquid flows upwards from the bottom, the liquid passes through the filler area, the percolate or circulating water continuously enters the reactor, the liquid also flows out of the reactor continuously, part of anaerobic ammonium oxidation bacteria can be carried in the upward flowing process of the liquid, the anaerobic ammonium oxidation bacteria are blocked layer by bamboo charcoal, biochemical filler and non-woven fabric, so that the loss rate of the cultured anaerobic ammonium oxidation bacteria is greatly reduced, the anaerobic ammonium oxidation bacteria are multiplied and slowly enriched, the biochemical treatment efficiency is further higher, the liquid after the biochemical treatment flows out of the liquid outlet pipe and enters the inclined tube sedimentation tank at the bottom, the stirring assembly works to disperse the liquid flowing out of the liquid outlet pipe into the inclined tube area in the flowing process, the inclined tube filler is utilized to divide the liquid into a series of shallow layer sedimentation layers, and the treated and settled sediments move and separate in each sedimentation shallow layer, and finally, the sludge enters a sludge hopper to be deposited, flows out through a sludge discharge pipe after a period of time, and water obtained after the sludge is deposited enters an overflow weir at the upper part of the inclined pipe area and flows out of a water outlet pipe, so that the whole biochemical treatment process is finished.
Has the advantages that: the utility model discloses based on the traditional nitrification-denitrification process need additionally add the carbon source, and need be equipped with the problem of a series of large-floor-area biological ponds such as anaerobism pond, oxygen deficiency pond and good oxygen pond, innovative adoption anammox technology directly oxidizes ammonia nitrogen or nitrite nitrogen directly into nitrogen gas and completely gets rid of from the water, and anammox process need not to add the carbon source, and easy operation area is little, gets rid of efficiently; because anammox reactor area is little the utility model discloses in set up the upper portion of pipe chute sedimentation tank with anammox reactor, the space on abundant utilization pipe chute sedimentation tank upper portion for whole biochemical treatment's device structure is compacter. The utility model discloses it is little to remove the high area of nitrogen efficiency for the biochemical treatment cost reduces greatly.
Furthermore, the anaerobic ammonia oxidation reactor also comprises a three-phase separator positioned at the upper part of the packing area and a water distributor positioned at the lower part of the sludge bed reaction area, and the adjusting pipe is communicated with the water distributor. Uniformly distributing water to the liquid entering the anaerobic ammonia oxidation reactor through the water distributor, so that sewage can fully react with anaerobic ammonia oxidation in the sludge reaction zone; the liquid after the nitrogen removal treatment in the sludge bed reaction zone flows upwards to a three-phase separator, and the mixture of gas, water and sludge is separated by the three-phase separator.
Further, the stirring assembly comprises a plurality of vortex tubes with outlets inclined towards the cylinder wall, the vortex tubes are communicated with the liquid outlet pipe, and the outlets of the vortex tubes are annularly distributed on the cylinder wall. The liquid in the liquid outlet pipe enters the vortex pipe, and the outlet of the vortex pipe faces the cylinder wall, so when a plurality of vortex pipes annularly distributed on the cylinder wall simultaneously discharge liquid, the liquid in the plurality of vortex pipes is connected end to form a vortex on the side wall, so that the liquid in the stirring area begins to slowly flow.
Furthermore, the stirring assembly comprises a stirring motor and a stirring shaft coaxially fixed with the stirring motor, and stirring blades vertical to the stirring shaft are arranged on the stirring shaft. Stirring subassembly also can be realized through agitator motor, (mixing) shaft and stirring vane, and agitator motor starts to make coaxial fixed (mixing) shaft rotate, and then makes and (mixing) shaft vertically stirring vane level rotate around the (mixing) shaft, and then reaches the purpose of vortex, and agitator motor's rotational speed is at 10 ~ 20 r/min.
Preferably, the stirring shaft extends downwards into the mud bucket, and a mud scraper contacted with the wall surface of the mud bucket is detachably connected to the stirring shaft. When the mud on the wall surface of the mud bucket needs to be cleaned, the mud scraping plates are mounted on the sub-stirring shafts, the mud on the mud bucket can be scraped by starting the stirring motor, and when the mud scraping plates are not needed to be used, the mud scraping plates can be detached.
Further preferably, the stirring blade is provided with a plurality of strip-shaped through holes. In order to reduce the blocking effect of liquid on the stirring blade when the stirring blade rotates, strip-shaped through holes are arranged on the stirring blade to drain water.
Further, the biochemical filler is polyurethane sponge filler. The polyurethane foam has large porosity, and microorganisms can grow on the polyurethane foam tightly and efficiently, and the polyurethane foam is particularly suitable for anaerobic ammonia oxidizing bacteria.
Drawings
FIG. 1 is a schematic structural view of the percolate biochemical treatment device of the present invention;
FIG. 2 is a schematic structural diagram of the anammox reactor and the inclined plate sedimentation tank in FIG. 1.
Detailed Description
The following is further detailed by way of specific embodiments:
the reference numbers in the drawings are: the device comprises a regulating tank 1, an anaerobic ammonia oxidation reactor 2, an inclined tube sedimentation tank 3, a regulating tube 4, an exhaust pipe 5, a liquid outlet pipe 6, a water outlet pipe 7, a three-phase separator 21, non-woven fabrics 22, polyurethane sponge filler 23, bamboo charcoal 24, a sludge bed reaction zone 25, a reactor cylinder 26, a water distributor 27, a stirring motor 31, a stirring shaft 32, a stirring blade 33, a conical cylinder 34, inclined tube filler 35, a mud scraper 36, a mud discharge pipe 37, an overflow weir 38 and a garbage leachate inlet pipe 8.
When the anaerobic ammonium oxidation reactor is used, firstly, the garbage leachate is placed into the regulating tank 1, enters the anaerobic ammonium oxidation reactor 2 after being subjected to preliminary sedimentation, separation and water quality and water quantity regulation, the anaerobic ammonium oxidation reactor 2 is sequentially divided into four regions from top to bottom, namely a three-phase separation region, a filler region, a sludge bed reaction region 25 and a water distribution region, liquid enters the sludge bed reaction region 25 after being distributed by the water distributor 27 and reacts with anaerobic ammonium oxidation bacteria in sludge, and the anaerobic ammonium oxidation bacteria react with NO under anaerobic conditions2 —As an electron acceptor, NH4+Direct oxidation to nitrogen (N)2) In addition, when liquid flows upwards from the bottom through the filler area, leachate or circulating water continuously enters the reactor, and liquid can continuously flow out of the reactor, part of the anammox bacteria are carried in the liquid flowing upwards, and the anammox bacteria are blocked by the bamboo charcoal 24, the polyurethane foam and the non-woven fabric 22 layer by layer, thereby greatly reducing the loss rate of the cultured anammox bacteria, and because the anammox bacteria are multiplied and slowly enriched, and then make biochemical treatment's efficiency higher, the liquid after biochemical treatment flows out from drain pipe 6 and enters into the pipe chute sedimentation tank 3 of bottom, and stirring motor 31 rotates and drives the (mixing) shaft 32 and rotate and make stirring vane 33 rotate around (mixing) shaft 32 in water, make the liquid that comes out in the drain pipe 6 disperse in the pipe chute district in the flow, do benefit.The sewage is divided into a series of shallow sedimentation layers by an inclined pipe filler 35, the treated and settled sludge moves and separates in each sedimentation shallow layer, finally the sludge enters a sludge hopper for sedimentation, is scraped off by a scraper 36 after a period of time and flows out from a sludge discharge pipe 37, the water after the sludge settlement enters an overflow weir 38 at the upper part of the inclined pipe area and flows out from a water outlet pipe 7, and the whole biochemical treatment process is finished.
The embodiment 2 is different from the embodiment 1 only in that the stirring assembly is replaced by 6-12 vortex tubes with outlets inclined towards the cylinder wall, all the vortex tubes are communicated with the liquid outlet tube 6, and the outlets of the vortex tubes are annularly distributed on the cylinder wall.
Example 3 differs from example 1 only in that the angle of inclination of the tube packing 35 is 45 °.
Claims (7)
1. Leachate biochemical treatment device, its characterized in that: the device comprises a garbage leachate inlet pipe, an adjusting tank, an anaerobic ammonia oxidation reactor, an inclined tube sedimentation tank, a liquid outlet pipe and a water outlet pipe, wherein the garbage leachate inlet pipe is communicated with the adjusting tank; be equipped with sludge blanket reaction zone and filler district in the anaerobic ammonia oxidation reactor, the inoculation has anaerobic ammonia oxidation bacteria in the sludge blanket reaction zone, the filler district is from last to being equipped with bamboo charcoal, biochemical filler and non-woven fabrics down in proper order, the pipe chute sedimentation tank includes conical barrel, conical barrel is from last to being stirring district, pipe chute district and mud fill down in proper order, be equipped with the stirring subassembly in the stirring district, the pipe chute is intraductal to be equipped with from the middle part to the pipe wall below slope's pipe chute filler, the inclination of pipe chute filler is 45 ~ 60, the bottom of mud fill is provided with the mud pipe, the upside in pipe chute district is equipped with the overflow weir, the overflow weir is linked together with the outlet pipe.
2. The percolate biochemical treatment device according to claim 1, characterized in that: the anaerobic ammonia oxidation reactor also comprises a three-phase separator positioned at the upper part of the packing area and a water distributor positioned at the lower part of the sludge bed reaction area, and the regulating pipe is communicated with the water distributor.
3. The percolate biochemical treatment device according to claim 2, characterized in that: the stirring assembly comprises a plurality of vortex tubes with outlets inclined towards the cylinder wall, the vortex tubes are communicated with the liquid outlet pipe, and the outlets of the vortex tubes are annularly distributed on the cylinder wall.
4. The percolate biochemical treatment device according to claim 2, characterized in that: the stirring assembly comprises a stirring motor and a stirring shaft coaxially fixed with the stirring motor, and stirring blades vertical to the stirring shaft are arranged on the stirring shaft.
5. The percolate biochemical treatment device according to claim 4, wherein: the stirring shaft extends downwards into the mud bucket, and a mud scraper which is in contact with the wall surface of the mud bucket is detachably connected to the stirring shaft.
6. The percolate biochemical treatment device according to claim 5, wherein: and a plurality of strip-shaped through holes are formed in the stirring blade.
7. The leachate biochemical treatment apparatus as set forth in any of claims 1 to 6, wherein: the biochemical filler is polyurethane sponge filler.
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|---|---|---|---|
| CN201921493549.3U CN210656594U (en) | 2019-09-09 | 2019-09-09 | Biological treatment device for percolate |
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| CN201921493549.3U CN210656594U (en) | 2019-09-09 | 2019-09-09 | Biological treatment device for percolate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114149088A (en) * | 2021-12-14 | 2022-03-08 | 贵州欧瑞欣合环保股份有限公司 | Treatment device for garbage penetrating fluid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114149088A (en) * | 2021-12-14 | 2022-03-08 | 贵州欧瑞欣合环保股份有限公司 | Treatment device for garbage penetrating fluid |
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